JP6335721B2 - Air conditioning system - Google Patents

Description

  The present invention relates to an air supply passage for supplying air taken in from an outdoor space to the indoor space, an air supply means for causing the air taken in from the outdoor space to flow into the air supply passage, and air taken out from the indoor space. An exhaust passage for exhausting to the exhaust passage, exhaust means for passing air taken out from the indoor space to the exhaust passage, a first air supply region disposed in the air supply passage, and the first air supply region in the air supply passage The first desiccant rotor made of a breathable hygroscopic material is rotationally driven between the second air supply area disposed downstream of the first air supply area and the dehumidification of the air passing through the first air supply area and the second air supply area. A first rotor for cooling air passing through the air region; and a third supply disposed downstream of the first air supply region and upstream of the second air supply region in the air supply passage. An air region and a first exhaust region in the exhaust passage. The second desiccant rotor made of a breathable hygroscopic material is driven to rotate to dehumidify the air passing through the third air supply region and regenerate the second desiccant rotor with the air passing through the first exhaust region. A first heat medium supplied by a first heat medium supply means to the second rotor portion and air flowing between the first air supply region and the third air supply region in the air supply passage; A first heat exchanging part that cools by heat exchange, air flowing between the third air supply region and the second air supply region in the air supply passage, and the first exhaust region in the exhaust passage A second heat exchanging part for exchanging heat with the air flowing upstream, an air flowing between the second heat exchanging part and the first exhaust region in the exhaust passage, and a second heat medium A third heat exchanging section for exchanging heat with the second heat medium that has recovered the heat supplied by the supply means; About air conditioning system comprising a driving control unit that controls the operation of each device.

So far, in highly airtight apartment buildings, etc., from the viewpoint that 24 hour ventilation is required by the Building Standard Law, an air supply passage for supplying air taken from the outdoor space to the indoor space, and an outdoor passage to the air supply passage An air supply means for flowing air taken in from the space, an exhaust passage for exhausting air taken out from the indoor space to the outdoor space, an exhaust means for letting air taken from the indoor space into the exhaust passage, and an air supply There is known a 24-hour ventilation facility including a heat exchanger for exchanging heat between air flowing through a passage and air flowing through an exhaust passage.
In such a 24-hour ventilation facility, the temperature is not adjusted sufficiently and the humidity is not adjusted. For example, in summer, air having a relatively high temperature and a high humidity is used outdoors. There is a concern that the user may feel uncomfortable because the space is taken into the indoor space.
Therefore, as shown in Patent Document 1, an air supply passage for supplying air taken in from the outdoor space to the indoor space, an air supply means for causing the air taken in from the outdoor space to flow into the air supply passage, and the indoor space An exhaust passage for exhausting air taken out from the outdoor space, exhaust means for passing the air taken out from the indoor space into the exhaust passage, a first air supply region disposed in the air supply passage, and a first air supply passage in the air supply passage The first desiccant rotor made of a breathable hygroscopic material is rotationally driven between the second air supply region disposed downstream of the first air supply region, and the dehumidification of the air passing through the first air supply region and the second A first rotor portion that cools the air that passes through the second air supply region, and a third air supply that is disposed downstream of the first air supply region and upstream of the second air supply region in the air supply passage. Ventilation between the area and the first exhaust area in the exhaust passage A second rotor unit that rotationally drives a second desiccant rotor made of a wet body to perform dehumidification of air passing through the third air supply region and regeneration of the second desiccant rotor by air passing through the first exhaust region; First heat that cools the air flowing between the first supply region and the third supply region in the supply passage by heat exchange with the first heat medium supplied by the first heat medium supply means. A second heat exchanger exchanges heat between the air flowing between the third supply region and the second supply region in the supply passage and the air flowing upstream of the first exhaust region in the exhaust passage. Heat exchange between the heat exchange part, the air flowing between the second heat exchange part and the first exhaust region in the exhaust passage, and the second heat medium recovered from the heat supplied by the second heat medium supply means An air conditioning system including a third heat exchanging unit and an operation control unit that controls the operation of each device has been proposed. .
In the technique disclosed in Patent Document 1, the air taken into the air supply passage from the outdoor space is dehumidified in the first air supply region of the first rotor portion by moisture being adsorbed by the air-permeable hygroscopic body. In addition, the heat radiated from the breathable hygroscopic body is recovered and the temperature is raised, and the temperature is lowered by cooling with the first heat exchange unit in the first heat exchange unit to lower the temperature. In the third air supply region, the temperature is further dehumidified and the temperature is raised, and in the second heat exchange part, the temperature is lowered by cooling with heat exchange with the air flowing through the exhaust passage, and the second air supply of the first rotor part In the region, moisture is collected from the breathable hygroscopic body and humidified, and the moisture is absorbed by the breathable hygroscopic body as the moisture is released, and then is supplied to the indoor space as dehumidified and cooled air.
On the other hand, as shown in Patent Document 2, there is also known one having a mechanism capable of switching between a passage through which air taken in from an outdoor space flows and a passage through which air taken out from the indoor space flows. The technique disclosed in Patent Document 2 is configured to be switchable between dehumidifying cooling and humidifying heating by switching passages with a passage switching mechanism. Thereby, in the technique disclosed in Patent Document 2, relatively low temperature and low humidity air is supplied to the indoor space in the dehumidifying and cooling operation, and relatively high temperature and high humidity air is supplied to the indoor space in the humidifying heating operation. Supplied to the space.

JP2013-204822A JP 2012-102887 A

Until now, as an air conditioning system using a desiccant, it is possible to switch between a cooling and dehumidifying technique and a heating and humidifying technique as described in Patent Document 2, as described in Patent Document 1. Although there was a technology, there was no technology that could finely adjust the temperature and humidity in the cooling and dehumidification in accordance with the needs of the user.
Furthermore, in conventional air-conditioning systems using a desiccant, there is only a technique capable of performing either cooling dehumidification or heating humidification. For example, the air to be taken in, for example, reheat dehumidification operation of a heat pump type air conditioner. The technology for performing the operation of reducing the humidity while maintaining the temperature of the temperature to some extent has not been known so far, and there is room for improvement.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a desiccant air conditioning system capable of finely adjusting the temperature and humidity of air supplied to an indoor space in accordance with a user's request. It is in.

In order to achieve the above object, the air conditioning system of the present invention comprises:
An air supply passage for supplying air taken from the outdoor space to the indoor space;
An air supply means for passing air taken from the outdoor space into the air supply passage;
An exhaust passage for exhausting air taken from the indoor space to the outdoor space;
Exhaust means for passing air taken out from the indoor space to the exhaust passage;
A first air-absorbing body is formed between a first air supply region disposed in the air supply passage and a second air supply region disposed downstream of the first air supply region in the air supply passage. A first rotor unit that rotationally drives a desiccant rotor to dehumidify air passing through the first air supply region and cool air passing through the second air supply region;
Air permeability between a third air supply region disposed downstream of the first air supply region in the air supply passage and upstream of the second air supply region, and a first exhaust region in the exhaust passage. A second rotor that rotationally drives a second desiccant rotor made of a hygroscopic body to dehumidify air passing through the third air supply region and regenerate the second desiccant rotor by air passing through the first exhaust region. And
Air flowing between the first supply region and the third supply region in the supply passage is cooled by heat exchange with the first heat medium supplied by the first heat medium supply means. A first heat exchange section;
Heat exchange is performed between air flowing between the third supply region and the second supply region in the supply passage and air flowing upstream of the first exhaust region in the exhaust passage. A second heat exchange section;
Heat exchange is performed between the air that flows between the second heat exchange unit and the first exhaust region in the exhaust passage and the second heat medium that recovers the heat supplied by the second heat medium supply unit. A third heat exchange section;
An air conditioning system including an operation control unit that controls the operation of each device, the characteristic configuration of the operation control unit,
Air is taken in from the outdoor space to the air supply passage by the air supply means, air is taken out from the indoor space to the exhaust passage by the exhaust means, and the second heat medium is supplied by the second heat medium supply means. In the state where the second desiccant rotor of the second rotor part is rotationally driven,
The duty ratio of the rotation of the first desiccant rotor of the first rotor portion is controlled, and the duty ratio of the supply of the first heat medium by the first heat medium supplying means is controlled, so that the duty of the rotation of the first desiccant rotor is controlled. A temperature / humidity adjustment operation is performed in which the rotation timing of the ratio control and the supply timing of the duty ratio control of the supply of the first heat medium by the first heat medium supply means are synchronously controlled.

According to the above characteristic configuration, the operation control unit takes in air from the outdoor space by the air supply means, takes air from the indoor space by the exhaust means, and supplies the air to the third heat exchange unit by the second heat medium supply means. In a state in which two heating media are supplied and the second desiccant rotor of the second rotor portion is rotationally driven, the duty ratio of the rotation of the first desiccant rotor of the first rotor portion is controlled, and the first heating medium supply means Since the duty ratio of the supply of the first heat medium is controlled, by first controlling these duty ratios between 0 and 1, the flow rate of the air taken into the indoor space from the outdoor space is maintained constant, The amount of dehumidification and cooling of the air taken in from the space can be adjusted appropriately.
Further, the above-described duty ratio control is a mode in which the rotation timing of the duty ratio control of the rotation of the first desiccant rotor and the supply timing of the duty ratio control of the first heat medium supply by the first heat medium supply means are synchronously controlled. Since this is executed, the timing at which the air taken in from the outdoor space receives heat from the breathable hygroscopic material passing through the first air supply region of the first desiccant rotor, and the heat from the first heat medium in the first heat exchange unit. It is possible to correspond to the timing of heat dissipation by replacement. As a result, for example, when heat is not received in the first air supply region at the timing when the rotation of the first desiccant rotor is stopped, the first heat exchange unit can be in a state of not releasing heat. It is possible to prevent fluctuations associated therewith.

Further features of the air conditioning system of the present invention are as follows:
The operation control unit, as the temperature and humidity adjustment operation,
A low-temperature dehumidifying operation for controlling the duty ratio of rotation of the first desiccant rotor of the first rotor section and the duty ratio of the supply of the first heat medium by the first heat medium supply means to a high duty ratio;
A high temperature dehumidifying operation for controlling the duty ratio of rotation of the first desiccant rotor of the first rotor section and the duty ratio of supply of the first heat medium by the first heat medium supply means to a low duty ratio;
The duty ratio of the rotational drive of the first desiccant rotor of the first rotor portion and the duty ratio of the supply of the first heat medium by the first heat medium supply means are set to a value larger than the low duty ratio and smaller than the high duty ratio. It is in the point of switching and controlling the intermediate temperature dehumidifying operation to be controlled.

That is, according to the above characteristic configuration, the duty ratio of the rotational drive of the first desiccant rotor of the first rotor portion and the duty ratio of the supply of the first heat medium by the first heat medium supply means are changed from the low duty ratio to the high duty ratio. The control can be switched between a low-temperature dehumidifying operation, a high-temperature dehumidifying operation, and a medium-temperature dehumidifying operation by a relatively simple control of synchronously controlling the value between the two.
In particular, in the medium temperature dehumidification operation, the dehumidification amount and the cooling amount can be appropriately adjusted between the low temperature dehumidification and the high temperature dehumidification by changing the duty ratio to a value larger than the low duty ratio and smaller than the high duty ratio.

Further features of the air conditioning system of the present invention are as follows:
Temperature measuring means for measuring the temperature of the air supplied from the air supply passage to the indoor space,
When the temperature measured by the temperature measurement unit is less than the high temperature dehumidification determination threshold as the temperature and humidity adjustment operation, the operation control unit executes the high temperature dehumidification operation and is measured by the temperature measurement unit. that when the measured temperature exceeds the hot dehumidification determination threshold low temperature dehumidification determination threshold is a high temperature determination threshold with respect, the running cold dehumidifying operation, the measurement temperature measured by said temperature measuring means wherein the high temperature dehumidification determination When the temperature is not less than the threshold value and not more than the low temperature dehumidification determination threshold value, the temperature maintaining operation is performed in which the medium temperature dehumidifying operation is switched.

  According to the above characteristic configuration, by performing the temperature maintenance operation as the temperature and humidity adjustment operation, when the temperature supplied to the indoor space is less than the relatively low temperature high temperature dehumidification determination threshold, execute the high temperature dehumidification operation, When the room temperature is adjusted to the high side and the temperature supplied to the indoor space exceeds the relatively low temperature dehumidification judgment threshold, a low temperature dehumidifying operation is performed to adjust the room temperature to the low side and supply to the indoor space When the temperature to be set is a medium temperature that is equal to or higher than the high temperature dehumidification determination threshold and equal to or lower than the low temperature dehumidification determination threshold, the room temperature can be maintained substantially constant because the switching control is performed in the form of executing the intermediate temperature dehumidification operation.

Further features of the air conditioning system of the present invention are as follows:
Temperature measuring means for measuring the temperature of the air supplied from the air supply passage to the indoor space,
As the temperature measured by the temperature measuring unit rises, the operation control unit rotates the duty ratio of the first desiccant rotor of the first rotor unit and the first heat medium supply unit performs the first heating medium. 1 is to increase the duty ratio of the supply of the heat medium.

  According to the above characteristic configuration, control is performed to increase the duty ratio as the temperature measured by the temperature measuring means rises. Therefore, the higher the temperature of the air taken into the indoor space, the higher the air taken into the indoor space. Thus, the air-conditioning air that can satisfy the user's feeling of use can be supplied to the indoor space.

Further features of the air conditioning system of the present invention are as follows:
A driving operation reception unit that receives external driving operations is provided.
The operation control unit is configured to switch and control the low temperature dehumidifying operation, the intermediate temperature dehumidifying operation, and the high temperature dehumidifying operation based on an operation control command corresponding to the operation operation received by the operation operation receiving unit.

  According to the above characteristic configuration, the user responds to the user's request by executing a driving operation corresponding to any one of the low temperature dehumidifying operation, the medium temperature dehumidifying operation, and the high temperature dehumidifying operation at the driving operation reception unit. In the form, the low temperature dehumidifying operation, the medium temperature dehumidifying operation, and the high temperature dehumidifying operation can be executed. As a result, for example, when it is desired to maintain the indoor space at a relatively low temperature in summer, the indoor space can be adjusted to the low temperature side by performing a low temperature dehumidifying operation. If you want to perform only dehumidification while maintaining a certain amount of water, you can prevent the indoor space from being overcooled as in the cooling operation by performing the medium temperature dehumidification operation.For example, you can dry clothes in the indoor space. When it is desired to perform the high temperature dehumidification operation, the clothes can be satisfactorily dried by the air dried at a relatively high temperature.

Further features of the air conditioning system of the present invention are as follows:
The first heat medium supply means comprises a fan for sending outdoor air to the first Netsunakadachidori flow path as the first heating medium, with the possible damper unit switches the closing state of the first Netsunakadachidori channel ,
The operation control unit, in the temperature and humidity adjustment operation, as the duty ratio control of the supply of the outdoor air by the first heat medium supplying unit, in that to perform the duty ratio control of the open and closed state of the damper unit is there.

  According to the above characteristic configuration, since the duty ratio control of the outdoor air supply by the first heat medium supply means is executed in a form that adjusts the duty ratio control between the open state and the closed state of the damper portion, it is relatively simple. According to the configuration, the duty ratio control of the outdoor air supply can be executed.

Schematic configuration diagram of the air conditioning system of the present invention Example of air diagram when performing low temperature dehumidification operation Example of air diagram when performing high temperature dehumidification operation Control flow diagram of temperature and humidity adjustment operation Control flow diagram of temperature maintenance operation processing (automatic operation processing) Control flow chart of each operation process that performs high temperature dehumidification, medium temperature dehumidification, and low temperature dehumidification separately

The air conditioning system 100 according to the embodiment of the present invention not only simply performs cooling / dehumidifying operation in an air conditioner using a desiccant, but also air conditioning air SA supplied to an indoor space in accordance with a user's request. It is related with what can control the temperature and humidity of this.
Hereinafter, the description of the air conditioning system 100 according to the embodiment will be added based on the drawings.

As shown in FIG. 1, the air conditioning system 100 according to this embodiment includes an air supply passage R1 that supplies air taken from the outdoor space OS to the indoor space IS, and air that is taken from the outdoor space OS into the air supply passage R1. A first fan F1 (an example of an air supply unit) to be circulated, an exhaust passage R2 for exhausting the air extracted from the indoor space IS to the outdoor space OS, and an air extracted from the indoor space IS to the exhaust passage R2. And a second fan F2.
Usually, the operation control unit C1 rotationally drives the first fan F1 and the second fan F2, and ventilation is performed for 24 hours in such a manner that air is passed through the supply passage R1 and the exhaust passage R2.

Further, as a rotor unit for dehumidifying and cooling the air, a first supply region D1a disposed in the supply passage R1 and a second supply disposed downstream of the first supply region D1a in the supply passage R1. The first desiccant rotor D1r made of a breathable hygroscopic material is rotationally driven between the air region D1b, dehumidification of air passing through the first air supply region D1a, and cooling of air passing through the second air supply region D1b. In the first air supply region D2a and the exhaust passage R2 disposed downstream of the first air supply region D1a and upstream of the second air supply region D1b in the air supply passage R1. The second desiccant rotor D2r made of a breathable hygroscopic material is rotationally driven between the first exhaust area D2b and the air passing through the third exhaust area D2a and the air passing through the first exhaust area D2b. Second desiccant rotor D And a second rotor part D2 which performs the r playback.
The configuration of the first rotor part D1 and the second rotor part D2 will be described.
The first desiccant rotor D1r provided in the first rotor part D1 is rotationally driven at a relatively low predetermined rotational speed with its central part fixed to the rotating shaft by a rotating mechanism part M1 such as a motor. It is configured as a disk-shaped or columnar member arranged in a posture crossing the first air supply region D1a and the second air supply region D1b. The first desiccant rotor D1r is formed in a honeycomb shape in which a large number of passages that penetrate in the direction along the rotation axis are formed. In the first air supply region D1a and the second air supply region D1b, the air flows in the first desiccant region. Passes through the rotor D1r. The first desiccant rotor D1r carries a known adsorbent such as zeolite, silica gel, activated carbon (activated carbon fiber), and is a breathable adsorbent.
In the first rotor portion D1 including the first desiccant rotor D1r, relatively low-temperature air passes through the first supply region D1a out of the first supply region D1a and the second supply region D1b. As a result, the air is dehumidified with a temperature increase due to the heat dissipation action when the first desiccant rotor D1r absorbs moisture, whereby the first desiccant rotor D1r is in a state of adsorbing moisture of the air. The portion of the first desiccant rotor D1r that has adsorbed the moisture moves to the second air supply region D1b by the rotational drive.
On the other hand, the relatively high-temperature air passes through the second air supply region D1b, so that the air is humidified with a temperature decrease due to the endothermic action when the first desiccant rotor D1r is dehumidified, thereby the first desiccant rotor. D1r is regenerated by desorbing the adsorbed moisture. The regenerated portion of the first desiccant rotor D1r moves to the first air supply region D1a by the rotational drive.
In this way, the rotor part D1 is configured to be able to dehumidify the air passing through the first air supply region D1a and to cool the air passing through the second air supply region D1b. ing.

  The second rotor portion D2 is the same as the first rotor portion D1, except that the first air supply region D1a becomes the third air supply region D2a and the second air supply region D1b becomes the first exhaust region D2b. Since it has the same configuration as the first rotor part D1, its detailed description is omitted here.

Further, the air conditioning system 100 of the present embodiment is configured as follows in order to heat and cool the air flowing through the air supply passage R1 and the exhaust passage R2.
A heat medium passage R3 for exhausting the air taken in from the outdoor space OS to the outdoor space OS, and a third fan F3 for passing the air taken in from the outdoor space OS to the heat medium passage R3 are provided. Furthermore, a first plate heat exchanger that exchanges heat between air flowing between the first air supply region D1a and the third air supply region D2a in the air supply passage R1 and air flowing through the heat medium passage R3. EX1 (an example of a first heat exchange unit) is provided. With this configuration, the air whose temperature has risen as the humidity decreases due to the hygroscopic action of the first desiccant rotor D1r by passing through the first air supply region D1a is relatively low-temperature outdoor space OS in the first plate heat exchanger EX1. It cools and cools by exchanging heat with air.
The heat medium passage R3 is provided with a damper D capable of switching the passage between an open state and a closed state, and switching control between the open state and the closed state of the heat medium passage R3 by the damper D is operated. This is done by the control unit C1.

  Heat exchange is performed between the air flowing between the third supply region D2a and the second supply region D1b in the supply passage R1 and the air flowing upstream of the first exhaust region D2b in the exhaust passage R2. A second plate heat exchanger EX2 is provided. With this configuration, the air heated by the second desiccant rotor D2r due to the moisture absorption by the passage of the third air supply region D2a is converted into the second plate heat exchanger EX2 (an example of the second heat exchange unit). And cooled by heat exchange with air in a relatively low temperature indoor space IS.

Further, the hot water coil heater EX3 (heats the air flowing between the second plate heat exchanger EX2 and the first exhaust region D2b in the exhaust passage R2 by heat exchange with hot water as the second heat medium ( An example of a third heat exchange unit).
If explanation is added, a heat source machine (not shown) for heating hot water, a circulation path R4 for circulating hot water heated by the heat source machine between the hot water coil heater EX3 and the heat source machine, and the circulation path A pressure pump (not shown) that pumps the hot and cold water R4 and a hot water temperature sensor S2 that measures the temperature of the hot water supplied to the hot water coil heater EX3 are provided.

With the above configuration, the outdoor air OA taken into the air supply passage R1 from the outdoor space OS is supplied to the first air supply region D1a of the first rotor portion D1, the first plate heat exchanger EX1, and the second rotor portion D2. After passing through the third air supply region D2a, the second plate heat exchanger EX2, and the second air supply region D1b of the first rotor portion D1, the air is supplied to the indoor space IS as air conditioning air SA.
Furthermore, after the indoor air RA taken into the exhaust passage R2 from the indoor space IS passes through the second plate type heat exchanger EX2, the hot water coil heater EX3, and the first exhaust region D2b of the second rotor portion D2, Exhaust EA is discharged to the outdoor space OS.
Further, the outdoor air OA taken into the heat medium passage R3 from the outdoor space OS passes through the damper D and the first plate heat exchanger EX1, and is then discharged to the outdoor space OS as exhaust EA.

  The operation control unit C1 includes hardware such as an arithmetic device and a storage device made of LSI, and software that cooperates with the hardware, and receives an air conditioning operation start command from the air conditioning system 100 from the driving operation reception unit C2. Upon reception, a signal for starting heating of the hot water is transmitted to the heat source unit, the pump is activated, and the hot water temperature measured by the hot water temperature sensor S2 is equal to or higher than the lower limit hot water temperature for air conditioning (for example, a temperature of 50 ° C. or higher). After that, the drive control of the first fan F1, the second fan F2, and the third fan F3, the rotation drive control of the first rotor part D1 and the second rotor part D2, and the opening / closing control of the damper D are executed.

  In the driving operation reception unit C2 that receives the driving operation of the user, an automatic temperature adjustment / dehumidification operation switch Sw1 that switches between execution and stop of the temperature maintenance operation processing that performs dehumidification while automatically keeping the temperature of the indoor space IS in a predetermined temperature range. And the first lighting lamp L1 that is turned on when the automatic temperature control dehumidifying operation switch Sw1 is ON, and dehumidifying while maintaining the temperature of the indoor space IS at a relatively high temperature (for example, a temperature higher than 30 ° C.). The high-temperature dehumidification operation switch Sw2 for switching between execution and stop of the high-temperature dehumidification operation, the second lighting lamp L2 that is lit when the high-temperature dehumidification operation switch Sw2 is ON, and the temperature of the indoor space IS is a relatively low temperature A low-temperature dehumidifying operation switch Sw4 for switching execution / stop of the low-temperature dehumidifying operation for dehumidifying while maintaining (for example, a temperature lower than 24 ° C.); A fourth lighting lamp L4 that is lit when the low temperature dehumidifying operation switch Sw4 is ON, and a medium temperature dehumidifying operation that performs a dehumidifying operation while maintaining the temperature of the indoor space IS at a medium temperature (for example, a temperature of 24 ° C. or higher and 30 ° C. or lower) An intermediate temperature dehumidifying operation switch Sw3 that switches between execution and stop of the operation and a third lighting lamp L3 that is turned on when the intermediate temperature dehumidifying operation switch Sw3 is turned on are provided.

  When the operation control unit C1 is turned ON in any one of the automatic temperature control dehumidification operation switch Sw1, the high temperature dehumidification operation switch Sw2, the intermediate temperature dehumidification operation switch Sw3, and the low temperature dehumidification operation switch Sw4 in the operation operation reception unit C2. The first fan F1 takes in air from the outdoor space OS to the air supply passage R1, the second fan F2 takes out air from the indoor space to the exhaust passage R2, and hot water heated by a heat source machine (not shown) is used. Rotation of the first desiccant rotor D1r of the first rotor part D1 in a state where the second desiccant rotor D2r of the second rotor part D2 is driven to rotate by a pumping pump (not shown) to the hot water coil heater EX3. Duty ratio control (hereinafter sometimes abbreviated as first duty ratio control) and opening duty ratio control of the damper D provided in the heat medium passage R3 (hereinafter referred to as "first duty ratio control"). (Sometimes abbreviated as second duty ratio control), an operation (an example of temperature and humidity adjustment operation) that synchronously controls the rotation timing in the first duty ratio control and the opening timing in the second duty ratio control. Run.

  When the description is added, the operation control unit C1 sets the duty ratio of the first duty ratio control and the duty ratio of the second duty ratio control to a high duty ratio (1 in the embodiment) as the temperature and humidity adjustment operation. A low temperature dehumidifying operation, a high temperature dehumidifying operation in which the duty ratio of the first duty ratio control and the duty ratio of the second duty ratio control are set to a low duty ratio (0 in the present embodiment), and the first duty ratio control The intermediate temperature dehumidifying operation in which the duty ratio and the duty ratio in the second duty ratio control are set to a medium duty ratio (an arbitrary value larger than 0 and smaller than 1 in this embodiment) can be switched and controlled.

<Low temperature dehumidification operation>
In the low-temperature dehumidifying operation, the operation control unit C1 controls the rotation of the first desiccant rotor D1r by the rotation mechanism unit M1 of the first rotor unit D1 so as to always open the damper D, thereby supplying the air supply passage R1. As shown in the air diagram of FIG. 2, the outdoor air OA taken in is dehumidified by the hygroscopic action of the first desiccant rotor D1r in the first air supply region D1a, and the temperature rises due to the heat release accompanying the hygroscopic action ( In FIG. 2, OA → P1), the temperature is lowered by heat exchange with the outdoor air OA in the first plate heat exchanger EX1 (P1 → P2 in FIG. 2), and the second desiccant in the third supply region D2a The rotor D2r is dehumidified by the hygroscopic action, and the temperature is raised by heat radiation accompanying the hygroscopic action (P2 → P3 in FIG. 2), and the temperature is lowered by heat exchange with the room air RA in the second plate heat exchanger EX2 ( Figure P3 → P4) After the temperature is lowered by the heat absorption associated with the moisture releasing action of the first desiccant rotor D1r in the second air supply region D1b (P4 → SA in FIG. 2), the air conditioning air SA is passed to the indoor space IS. Supplied.
Note that the points OA, P1, P2, P3, P4, and SA shown in the air diagram of FIG. 2 are OA, P1, P2, P3, P4 and the like in the air supply passage R1 in the schematic configuration diagram of FIG. Corresponding to each point of SA, specific numerical values of air temperature and relative humidity are shown in Table 1 below.
By the low-temperature dehumidifying operation, the air-conditioning air SA that has been cooled to a relatively low temperature and dehumidified is supplied to the indoor space IS.
The low-temperature dehumidifying operation is an operation used when air that has been dehumidified at a relatively low temperature is supplied as air-conditioning air SA, and is used, for example, as a base cooling in summer.

<High temperature dehumidification operation>
In the high temperature dehumidifying operation, the operation control unit C1 controls the rotation of the first desiccant rotor D1r by the rotation mechanism unit M1 of the first rotor unit D1 so that the damper D is always closed, thereby supplying air. The outdoor air OA taken into the passage R1 is dehumidified by the hygroscopic action of the second desiccant rotor D2r in the third air supply region D2a as shown in the air diagram of FIG. Then, after the temperature is lowered by heat exchange with the indoor air RA in the second plate type heat exchanger EX2 (P3 → SA in FIG. 2), the indoor space IS is used as the air conditioning air SA. Supplied to.
The points OA, P1, P2, P3, P4, and SA shown in the air diagram of FIG. 3 are the OA, P1, P2, P3, P4, and the points in the air supply passage R1 in the schematic configuration diagram of FIG. Table 2 below shows specific numerical values of air temperature and relative humidity corresponding to each point of SA.
By the high temperature dehumidifying operation, the air-conditioning air SA that has been cooled to a relatively high temperature and dehumidified is supplied to the indoor space IS.
The high temperature dehumidifying operation is an operation used when air having a relatively high temperature and dehumidified is supplied as the air conditioning air SA, and is used, for example, when clothes are dried indoors.

<Medium temperature dehumidification operation>
In the intermediate temperature dehumidifying operation, the operation control unit C1 controls the rotation duty ratio of the first desiccant rotor D1r to a value larger than 0 and smaller than 1 by the rotation mechanism M1 of the first rotor part D1 (first duty ratio control). At the same time, the duty ratio of opening the damper D is controlled to a value larger than 0 and smaller than 1 (second duty ratio control), and the first duty ratio control and the second duty ratio control are synchronized. As a result, when the duty ratio related to the first duty ratio control and the duty ratio related to the second duty ratio control are set to 0.5, for example, the temperature and humidity of the air conditioning air SA are set for the air conditioning in the low temperature dehumidifying operation. The temperature and humidity of the air SA and the temperature and humidity of the air conditioning air SA in the high temperature dehumidifying operation are set to substantially intermediate values.
The intermediate temperature dehumidifying operation is an operation that is used when air at a medium temperature and dehumidified is supplied as air conditioning air SA. For example, the intermediate temperature dehumidifying operation is used when dehumidifying is performed without excessively reducing the temperature in the rainy season.

In the air conditioning system 100 according to the embodiment, in addition to the above-described high temperature dehumidifying operation, low temperature dehumidifying operation, and medium temperature dehumidifying operation, these operations are switched and controlled based on the temperature of the air supplied to the indoor space IS. The temperature maintenance operation is performed.
Hereinafter, as the temperature / humidity adjustment operation, the control for executing the high temperature dehumidification operation, the low temperature dehumidification operation, the intermediate temperature dehumidification operation, and the temperature maintenance operation will be described based on the control flow of FIGS.

As shown in FIG. 4, the operation control unit C1 includes any one of the automatic temperature adjustment / dehumidification operation switch Sw1, the high temperature dehumidification operation switch Sw2, the medium temperature dehumidification operation switch Sw3, and the low temperature dehumidification operation switch Sw4 in the operation operation receiving unit C2. When ON is operated (# 101), it is confirmed whether the outputs from the air temperature sensor S1 and the hot water temperature sensor S2 for measuring the temperature of the air conditioning air SA supplied to the indoor space IS are normally obtained (# 102). ).
On the other hand, when none of the switches Sw1 to Sw4 is turned ON, the operation control unit C1 is configured to take the outdoor air OA of the outdoor space OS into the air supply passage R1 so as to maintain the ventilation for 24 hours. The driving of the second fan F2 is maintained so that the driving of F1 is maintained and the indoor air RA of the indoor space IS is taken into the exhaust passage R2, and the damper D is opened.
Next, the operation control unit C1 heats the hot water in the heat source device (not shown) so that the temperature of the hot water supplied to the hot water coil heater EX3 is equal to or higher than the lower limit hot water temperature (for example, a temperature of 50 ° C. or higher). At the same time, a pressure pump (not shown) is operated (# 103, # 104).
Thereafter, when any one of the high temperature dehumidification operation switch Sw2, the medium temperature dehumidification operation switch Sw3, and the low temperature dehumidification operation switch Sw4 is turned ON (# 106), the operation control unit C1 performs each operation process (shown in FIG. 6). Control flow process) is executed (# 108), and none of the high temperature dehumidification operation switch Sw2, the intermediate temperature dehumidification operation switch Sw3, and the low temperature dehumidification operation switch Sw4 is turned on (that is, the automatic temperature control dehumidification operation switch Sw1). ), A temperature maintenance operation process (control flow process shown in FIG. 5) is executed (# 107).
When both the temperature maintenance operation process and the separate operation processes are completed, the operation control unit C1 ends the temperature / humidity adjustment operation and maintains the ventilation for 24 hours.

<Temperature maintenance operation processing>
In the temperature maintenance operation process, a high-temperature dehumidification operation is performed based on the temperature of the air temperature sensor S1 that measures the temperature of the air-conditioning air SA that is supplied to the indoor space IS after flowing through the air supply passage R1. In this process, the interior of the indoor space IS is automatically adjusted to a certain temperature range by switching control between the medium temperature dehumidifying operation and the low temperature dehumidifying operation.
As shown in FIG. 5, when the output Tr of the air temperature sensor S1 is less than a high temperature dehumidification determination threshold (for example, 24 ° C.) (# 201), the operation control unit C1 increases the temperature of the indoor space IS to increase the temperature. When the high temperature dehumidifying operation is executed (# 202) and the output Tr of the air temperature sensor S1 exceeds the low temperature dehumidifying judgment threshold (for example, 30 ° C.) (# 201), the low temperature dehumidifying operation is performed to lower the temperature of the indoor space IS. (# 204), and when the output Tr of the air temperature sensor S1 is not less than the high temperature dehumidification determination threshold and not more than the low temperature dehumidification determination threshold (# 201), the intermediate temperature dehumidification operation is performed in order to maintain the temperature of the indoor space IS at that temperature. Execute (# 203).
The operation control unit C1 repeatedly executes the control of # 201 to # 204 until the automatic temperature adjustment / dehumidification operation switch Sw1 is turned off (# 201 to # 205).

When the automatic temperature control dehumidifying operation switch Sw1 is turned off (# 205), the operation control unit C1 is turned on for all of the high temperature dehumidifying operation switch Sw2, the intermediate temperature dehumidifying operation switch Sw3, and the low temperature dehumidifying operation switch Sw4. If not (# 206), the temperature maintenance operation process is terminated.
On the other hand, when the automatic temperature control dehumidifying operation switch Sw1 is turned OFF (# 205), the operation control unit C1 is one of the high temperature dehumidifying operation switch Sw2, the intermediate temperature dehumidifying operation switch Sw3, and the low temperature dehumidifying operation switch Sw4. Is turned on (# 206), the process proceeds to each separate operation process (control flow process shown in FIG. 6) (# 207).
In this embodiment, the automatic temperature control / dehumidification operation switch Sw1 is turned off in addition to the case where the automatic temperature control / dehumidification operation switch Sw1 is turned off, the high temperature dehumidification operation switch Sw2, the medium temperature dehumidification operation switch Sw3, And when either of the low-temperature dehumidifying operation switch Sw4 is turned on, it is automatically executed.

<Each operation>
The separate operation process is a process in which each of the high temperature dehumidifying operation, the medium temperature dehumidifying operation, and the low temperature dehumidifying operation is separately performed in accordance with the driving operation to the driving operation receiving unit C2 by the user.
As shown in FIG. 6, when the high temperature dehumidifying operation switch Sw2 is turned on (# 301), the operation control unit C1 executes the high temperature dehumidifying operation (# 302), and the intermediate temperature dehumidifying operation switch Sw3 is turned on. If it is (# 301), the medium temperature dehumidifying operation is executed (# 303), and if the low temperature dehumidifying operation switch Sw4 is ON (# 301), the low temperature dehumidifying operation is executed (# 304).
The operation control unit C1 repeatedly executes the control of # 301 to 304 until all of the high temperature dehumidification operation switch Sw2, the intermediate temperature dehumidification operation switch Sw3, and the low temperature dehumidification operation switch Sw4 are turned off (# 301 to # 305). ).

The operation control unit C1 operates when the high temperature dehumidification operation switch Sw2, the intermediate temperature dehumidification operation switch Sw3, and the low temperature dehumidification operation switch Sw4 are all turned off (# 305), and the automatic temperature control dehumidification operation switch Sw1 is turned on. If not (# 306), the separate operation process is terminated.
On the other hand, when all of the high temperature dehumidification operation switch Sw2, the intermediate temperature dehumidification operation switch Sw3, and the low temperature dehumidification operation switch Sw4 are turned off (# 305), the operation control unit C1 turns on the automatic temperature control dehumidification operation switch Sw1. When operated (# 306), the routine proceeds to temperature maintenance operation processing (control flow processing shown in FIG. 5) (# 307).
In this embodiment, any one of the high temperature dehumidification operation switch Sw2, the intermediate temperature dehumidification operation switch Sw3, and the low temperature dehumidification operation switch Sw4 is turned off by the high temperature dehumidification operation switch Sw2, the intermediate temperature dehumidification operation switch Sw3, and the low temperature. In addition to any one of the dehumidifying operation switches Sw4 being turned OFF, the automatic temperature control dehumidifying operation switch Sw1 is automatically executed when the ON operation is made.

[Another embodiment]
(1) In the above embodiment, in the temperature maintenance operation process in the temperature and humidity adjustment operation, the operation control unit C1 measures the air temperature sensor S1 that measures the temperature of the air-conditioning air SA supplied to the interior space IS. Based on the above, an example is shown in which the control for maintaining the temperature inside the indoor space IS at a constant temperature is performed while switching between the high temperature dehumidifying operation, the medium temperature dehumidifying operation, and the low temperature dehumidifying operation.
However, the operation control unit C1 may use the operation control index not as temperature but as humidity. When a description is added, a humidity sensor (not shown) that measures the humidity of the air-conditioning air SA is provided in the vicinity of the supply region where the air-conditioning air SA is supplied to the indoor space IS, and the operation control unit C1 includes: In the temperature and humidity adjustment operation, the operation state may be switched (duty ratio control) based on the measurement result of the humidity sensor in order to maintain the humidity of the indoor space IS substantially constant.
Specifically, as can be seen from FIGS. 2 and 3 shown in the other embodiment, the duty ratio of the rotation of the first desiccant rotor D1r of the first rotor portion D1 and the damper D as the first heat medium supply means. In the state in which the duty ratio of the open air is synchronously controlled, the absolute humidity (and relative humidity) of the air-conditioning air SA decreases as the respective duty ratios are lowered (as the state approaches the state of FIG. 3 from the state of FIG. 2). It can be seen that there is an increasing relationship.
In the other embodiment, the operation control unit C1 performs control to decrease the duty ratio as the measured humidity measured by the humidity sensor is higher. As a result, an air conditioning operation is performed in which the humidity of the air conditioning air SA supplied to the indoor space IS is controlled to be substantially constant.

(2) In the said embodiment, the example provided with a plate-type heat exchanger was shown as a 1st heat exchange part and a 2nd heat exchange part. However, the first heat exchange unit and the second heat exchange unit may employ, for example, a double tube heat exchanger or a rotor type heat exchanger that rotationally drives the sensible heat rotor.

(3) Although the example provided with the driving operation reception unit C2 has been described in the above embodiment, a configuration not including the driving operation reception unit C2 can be employed.
If a description is added, when the said driving operation reception part C2 is not provided, the air conditioning system 100 will always perform the temperature maintenance driving | operation process mentioned above. Thereby, the temperature of indoor space IS is controlled so that it may approach the temperature between the preset high temperature dehumidification determination threshold value and low temperature dehumidification determination threshold value.

(4) In the above embodiment, when the duty ratio control is performed when the outdoor air OA as the first heat medium is supplied to the first plate heat exchanger EX1, the damper D is switched between closing and opening. An example of controlling is shown. However, the duty ratio control may be performed in a configuration in which the damper D is omitted and the third fan F3 is subjected to ON / OFF control.

(5) In the above embodiment, the high duty ratio is 1, the low duty ratio is 0, and the medium duty ratio is set to a value greater than 0 and less than 1. However, the high duty ratio is 1 A value other than 1 in the vicinity may be set, and the low duty ratio may be set to a value other than 0 in the vicinity of 0. In this case, the medium duty ratio is set to a value larger than the low duty ratio and smaller than the high duty ratio.

(6) In the above embodiment, the operation control unit C1 performs the high temperature dehumidification operation, the medium temperature dehumidification operation, and the low temperature based on the measurement result of the air temperature sensor S1 that measures the temperature of the air conditioning air SA supplied to the indoor space IS. The example which performs control which switches between dehumidification driving | operations was shown. However, in the present invention, control that does not distinguish between the high temperature dehumidifying operation, the medium temperature dehumidifying operation, and the low temperature dehumidifying operation is also included in the scope of rights.
That is, in the present invention, the operation control unit C1 is configured such that the higher the temperature measured by the air temperature sensor S1 that measures the temperature of the air-conditioning air SA supplied to the indoor space IS, the higher the first rotor portion D1 has. The duty ratio for rotational driving of the desiccant rotor D1r and the duty ratio for opening the damper D provided in the heat medium passage R3 may be controlled to the higher side.

  The configuration disclosed in the above embodiment (including another embodiment, the same shall apply hereinafter) can be applied in combination with the configuration disclosed in the other embodiment, as long as no contradiction occurs. The embodiment disclosed in this specification is an exemplification, and the embodiment of the present invention is not limited to this. The embodiment can be appropriately modified without departing from the object of the present invention.

  The air conditioning system of the present invention can be effectively used as a desiccant air conditioning system capable of finely adjusting the temperature and humidity of the air supplied to the indoor space according to the user's request.

100: Air-conditioning system C1: Operation control unit C2: Operation operation receiving unit D: Damper D1: First rotor unit D1a: First supply region D1b: Second supply region D1r: First desiccant rotor D2: Second rotor unit D2a: third supply area D2b: first exhaust area D2r: second desiccant rotor EA: exhaust EX1: first plate type heat exchanger EX2: second plate type heat exchanger EX3: hot water coil heater F1: first Fan F2: Second fan IS: Indoor space OA: Outdoor air OS: Outdoor space R1: Air supply passage R2: Exhaust passage RA: Indoor air S1: Air temperature sensor S2: Hot water temperature sensor SA: Air for air conditioning

Claims (6)

An air supply passage for supplying air taken from the outdoor space to the indoor space;
An air supply means for passing air taken from the outdoor space into the air supply passage;
An exhaust passage for exhausting air taken from the indoor space to the outdoor space;
Exhaust means for passing air taken out from the indoor space to the exhaust passage;
A first air-absorbing body is formed between a first air supply region disposed in the air supply passage and a second air supply region disposed downstream of the first air supply region in the air supply passage. A first rotor unit that rotationally drives a desiccant rotor to dehumidify air passing through the first air supply region and cool air passing through the second air supply region;
Air permeability between a third air supply region disposed downstream of the first air supply region in the air supply passage and upstream of the second air supply region, and a first exhaust region in the exhaust passage. A second rotor that rotationally drives a second desiccant rotor made of a hygroscopic body to dehumidify air passing through the third air supply region and regenerate the second desiccant rotor by air passing through the first exhaust region. And
Air flowing between the first supply region and the third supply region in the supply passage is cooled by heat exchange with the first heat medium supplied by the first heat medium supply means. A first heat exchange section;
Heat exchange is performed between air flowing between the third supply region and the second supply region in the supply passage and air flowing upstream of the first exhaust region in the exhaust passage. A second heat exchange section;
Heat exchange is performed between the air that flows between the second heat exchange unit and the first exhaust region in the exhaust passage and the second heat medium that recovers the heat supplied by the second heat medium supply unit. A third heat exchange section;
An air conditioning system including an operation control unit that controls the operation of each device,
The operation controller is
Air is taken in from the outdoor space to the air supply passage by the air supply means, air is taken out from the indoor space to the exhaust passage by the exhaust means, and the second heat medium is supplied by the second heat medium supply means. In the state where the second desiccant rotor of the second rotor part is rotationally driven,
The duty ratio of the rotation of the first desiccant rotor of the first rotor portion is controlled, and the duty ratio of the supply of the first heat medium by the first heat medium supplying means is controlled, so that the duty of the rotation of the first desiccant rotor is controlled. An air conditioning system that performs a temperature and humidity adjustment operation that synchronously controls a rotation timing of ratio control and a supply timing of duty ratio control of the supply of the first heat medium by the first heat medium supply means. The operation control unit, as the temperature and humidity adjustment operation,
A low-temperature dehumidifying operation for controlling the duty ratio of rotation of the first desiccant rotor of the first rotor section and the duty ratio of the supply of the first heat medium by the first heat medium supply means to a high duty ratio;
A high temperature dehumidifying operation for controlling the duty ratio of rotation of the first desiccant rotor of the first rotor section and the duty ratio of supply of the first heat medium by the first heat medium supply means to a low duty ratio;
The duty ratio of the rotational drive of the first desiccant rotor of the first rotor portion and the duty ratio of the supply of the first heat medium by the first heat medium supply means are set to a value larger than the low duty ratio and smaller than the high duty ratio. The air conditioning system according to claim 1, wherein the air conditioning system performs switching control between a medium temperature dehumidifying operation to be controlled. Temperature measuring means for measuring the temperature of the air supplied from the air supply passage to the indoor space,
When the temperature measured by the temperature measurement unit is less than the high temperature dehumidification determination threshold as the temperature and humidity adjustment operation, the operation control unit executes the high temperature dehumidification operation and is measured by the temperature measurement unit. that when the measured temperature exceeds the hot dehumidification determination threshold low temperature dehumidification determination threshold is a high temperature determination threshold with respect, the running cold dehumidifying operation, the measurement temperature measured by said temperature measuring means wherein the high temperature dehumidification determination If the threshold above the at most low dehumidification determination threshold, the air-conditioning system according to claim 2 to perform a temperature maintenance operation for switching control in the form of executing the medium-temperature dehumidifying operation. Temperature measuring means for measuring the temperature of the air supplied from the air supply passage to the indoor space,
As the temperature measured by the temperature measuring unit rises, the operation control unit rotates the duty ratio of the first desiccant rotor of the first rotor unit and the first heat medium supply unit performs the first heating medium. The air conditioning system according to any one of claims 1 to 3, wherein a duty ratio for supplying one heat medium is increased. A driving operation reception unit that receives external driving operations is provided.
The said operation control part switches and controls the said low temperature dehumidification operation, the said intermediate temperature dehumidification operation, and the said high temperature dehumidification operation based on the operation control command corresponding to the driving operation received in the said driving operation reception part. The air conditioning system described. The first heat medium supply means comprises a fan for sending outdoor air to the first Netsunakadachidori flow path as the first heating medium, with the possible damper unit switches the closing state of the first Netsunakadachidori channel ,
The said operation control part performs duty ratio control with the open state of the said damper part and a closed state as said duty ratio control of the supply of the outdoor air by a said 1st heat medium supply means in the said temperature / humidity adjustment driving | operation. The air conditioning system as described in any one of 1-5.

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